Build-up of coherence between initially-independent subsystems: The case of Bose-Einstein condensates

Ofir E. Alon; Alexej I. Streltsov; Lorenz S. Cederbaum

doi:10.1016/j.physleta.2008.11.037

Build-up of coherence between initially-independent subsystems: The case of Bose-Einstein condensates

Ofir E. Alon, Alexej I. Streltsov, Lorenz S. Cederbaum

Research output: Contribution to journal › Article › peer-review

Abstract

When initially-independent subsystems are made to contact, coherence can develop due to interaction between them. We exemplify and demonstrate this paradigm through several scenarios of two initially-independent Bose-Einstein condensates which are allowed to collide. The build-up of coherence depends strongly on time, interaction strength and other parameters of each condensate. Implications are discussed.

Original language	English
Pages (from-to)	301-304
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	373
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2008.11.037
State	Published - 12 Jan 2009
Externally published	Yes

Bibliographical note

Funding Information:
We thank Kaspar Sakmann for discussions. Financial support by DFG is acknowledged.

Keywords

Coherence
Fragmented condensates
Multi-configurational time-dependent Hartree for bosons (MCTDHB)
Reduced density matrices
Time-evolution

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.physleta.2008.11.037

Cite this

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title = "Build-up of coherence between initially-independent subsystems: The case of Bose-Einstein condensates",

abstract = "When initially-independent subsystems are made to contact, coherence can develop due to interaction between them. We exemplify and demonstrate this paradigm through several scenarios of two initially-independent Bose-Einstein condensates which are allowed to collide. The build-up of coherence depends strongly on time, interaction strength and other parameters of each condensate. Implications are discussed.",

keywords = "Coherence, Fragmented condensates, Multi-configurational time-dependent Hartree for bosons (MCTDHB), Reduced density matrices, Time-evolution",

author = "Alon, {Ofir E.} and Streltsov, {Alexej I.} and Cederbaum, {Lorenz S.}",

note = "Funding Information: We thank Kaspar Sakmann for discussions. Financial support by DFG is acknowledged.",

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AU - Alon, Ofir E.

AU - Streltsov, Alexej I.

AU - Cederbaum, Lorenz S.

N1 - Funding Information: We thank Kaspar Sakmann for discussions. Financial support by DFG is acknowledged.

PY - 2009/1/12

Y1 - 2009/1/12

N2 - When initially-independent subsystems are made to contact, coherence can develop due to interaction between them. We exemplify and demonstrate this paradigm through several scenarios of two initially-independent Bose-Einstein condensates which are allowed to collide. The build-up of coherence depends strongly on time, interaction strength and other parameters of each condensate. Implications are discussed.

AB - When initially-independent subsystems are made to contact, coherence can develop due to interaction between them. We exemplify and demonstrate this paradigm through several scenarios of two initially-independent Bose-Einstein condensates which are allowed to collide. The build-up of coherence depends strongly on time, interaction strength and other parameters of each condensate. Implications are discussed.

KW - Coherence

KW - Fragmented condensates

KW - Multi-configurational time-dependent Hartree for bosons (MCTDHB)

KW - Reduced density matrices

KW - Time-evolution

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IS - 3

ER -

Build-up of coherence between initially-independent subsystems: The case of Bose-Einstein condensates

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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